Home / 20,616.95-28,426.45-17,424.62

Finding the Fourth Proportional to 20,616.95, 28,426.45 and 17,424.62

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Solution

The fourth proportional to 20,616.95, 28,426.45 and 17,424.62 is: 24,024.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.95 : 28,426.45 = 17,424.62 : x
  2. Step 2: Convert to fraction form
    20,616.95/28,426.45 = 17,424.62/x
  3. Step 3: Cross multiply
    20,616.95x = 28,426.45 × 17,424.62
  4. Step 4: Simplify right side
    20,616.95x = 495,320,089.20
  5. Step 5: Solve for x
    x = 495,320,089.20/20,616.95
  6. Step 6: Final answer
    x = 24,024.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.